<template>
  <div class="login-container">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <div class="title-container">
        <h3 class="title">芒果管家</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon
            :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
          />
        </span>
      </el-form-item>

      <el-button
        id="djdl"
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;color:#000;position:relative;border-color:#fff"
        @click.native.prevent="handleLogin"
        ><div class="container">
          <a href="#" class="btn effect01"
            ><b>点</b><b>击</b><b>登</b><b>录</b></a
          >
        </div></el-button
      >

      <div class="tips">
        <span style="margin-right:20px;">仅限管理员登录</span>
      </div>
    </el-form>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'

export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('请输入正确的用户名'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码不能少于6位数'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: 'admin',
        password: '111111'
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', validator: validateUsername }
        ],
        password: [
          { required: true, trigger: 'blur', validator: validatePassword }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store
            .dispatch('user/login', this.loginForm)
            .then(() => {
              this.$router.push({ path: this.redirect || '/' })
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
#djdl {
  background: #000;
  color: #fff;
  transition: 0.5s
}
#djdl:hover {
  background: #fff;
  border: 1px solid #000;
}
#djdl:hover .container a{
  color: #000
}
.container {
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  width: 100%;
}
.container a {
  font-family: -apple-system, 'Helvetica Neue', Helvetica, Arial, 'PingFang SC',
    'Hiragino Sans GB', 'WenQuanYi Micro Hei', 'Microsoft Yahei', sans-serif;
  font-size: 16px;
  font-weight: bold;
  color: #fff;
  padding: 0;
  transition: 0.5s
}
.container a b {
  width: 30px;
  display: inline-block;
}

.btn {
  letter-spacing: 0.1em;
  cursor: pointer;
  font-size: 14px;
  font-weight: 400;
  width: 100%;
  position: relative;
  text-decoration: none;
  text-transform: uppercase;
}

.btn:hover {
  text-decoration: none;
}

/*btn_background*/

// // .effect01 {
// //     color: #FFF;
// //     border: 4px solid #000;
// //     box-shadow: 0px 0px 0px 1px #000 inset;
// //     background-color: #000;
// //     overflow: hidden;
// //     position: relative;
// //     transition: all 0.3s ease-in-out;
// // }
// // .effect01{
// //   width: 100%;
// //   height: 100%;
// // }
// // .effect01:hover {
// //     border: 4px solid #000;
// //     background-color: #FFF;
// //     box-shadow: 0px 0px 0px 4px #EEE inset;
// // }
// /*btn_text*/

.effect01 span {
  transition: all 0.2s ease-out;
  z-index: 2;
}

.effect01:hover span {
  letter-spacing: 0.13em;
  color: #333;
}
/*highlight*/

// .effect01:after {
//     background: #FFF;
//     border: 0px solid #000;
//     content: "";
//     height: 155px;
//     left: -75px;
//     opacity: .8;
//     position: absolute;
//     top: -50px;
//     -webkit-transform: rotate(35deg);
//     transform: rotate(35deg);
//     width: 50px;
//     transition: all 1s cubic-bezier(0.075, 0.82, 0.165, 1);
//     /*easeOutCirc*/
//     z-index: 1;
// }

.effect01:hover:after {
  background: #fff;
  border: 20px solid #000;
  opacity: 0;
  left: 120%;
  -webkit-transform: rotate(40deg);
  transform: rotate(40deg);
}
.login-container {
  min-height: 100%;
  width: 100%;
  background: url(../../assets/img1/beijing.png) no-repeat;
  background-size: 100% 100%;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
